Patent AU-2021382150-B2 (AU)
Title: Wear sensor and method of sensing wear
Inventor: FRIZELL NIGEL RICHARD
IPC: G01B7/06
Filed: 2021-11-23
Granted: 2024-02-01
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 
(19) World Intellectual Property 
(1) Organization11111111111111111111111I1111111111111i1111liiiii 
International Bureau (10) International Publication Number 
(43) International Publication Date W O 2022/106727 Al 
27 May 2022 (27.05.2022) W IPO I PCT 
(51) InternationalPatent Classification: (81) Designated States (unless otherwise indicated, for every 
G01B 7/06 (2006.01) F16D 66/02 (2006.01) kind of national protection available): AE, AG, AL, AM, 
(21) International Application Number: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 
PCT/EP2021/082704 CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, 
(22) International Filing Date: HR, HU, ID, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KN, 
23 November 2021 (23.11.2021) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, 
ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, 
(25)FilingLanguage: English NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 
(26) Publication Language: English SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, 
(30) Priority Data: TR, TT, TZ, UA, UG, 
US, UZ, VC, VN, WS, ZA, ZM, ZW.  
20208640.1 19 November 2020 (19.11.2020) EP (84) Designated States (unless otherwise indicated, for every 
kind of regional protection available): ARIPO (BW, GH, 
(71) Applicant: METSO MINERALS OY [FI/Fl]; GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 
Lokomonkatu 3, 33900 Tampere (FI). UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 
(72) Inventor: GAYLARD, Nigel; 28 Nyunda Drive, Wan- TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 
neroo, Western Australia 6065 (AU). EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 
MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 
(74) Agent: HOFFMANN EITLE PATENT- UND TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 
RECHTSANWALTE PARTMBB; ArabellastraBe 30, KM, ML, MR, NE, SN, TD, TG).  
81925 Munich (DE).  
(54) Title: WEAR SENSOR AND METHOD OF SENSING WEAR 
Fig. 2A 
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210 211 212 213 214 
220 230 
(57) Abstract: The present invention relates to a wear sensor, a method for sensing wear occurring to an object, and an equipment 
subject to wear. The present invention further relates to a wear sensing system comprising the wear sensor and a measuring device for 
measuring an amount of wear occurring to an object. The wear sensor comprises an electrical circuit comprising a sequence of discrete 
elements, each discrete element being capable to temporarily hold a digital data value, wherein the electrical circuit is configured to 
sequentially transfer the digital data value from a first discrete element on a first edge of the wear sensor to subsequent discrete elements 
toward a second edge of the wear sensor, wherein each discrete element is capable of being electrically decoupled from the electrical 
circuit, sequentially in a direction from the second edge by action of wear on the wear sensor. A number of discrete elements in the 
sequence is reduced when wear occurs on the wear sensor.
W O 2022/106727 A1 |||||||||||||I|||||||I|||I|II|DI |||||||||||||||||||||||||||||||| 
Published: 
- with international search report (Art. 21(3)) 
- the filing date ofthe international application is within two 
months from the date of expiration of the priority period 
(Rule 26bis.3)